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US 11,548,262 B2Granted
Bonding film, and light-transmitting laminate including same
AssigneeSkc Co., Ltd.
InventorsHyejin Kim, Kyuhun Kim, Sungjin Chung, Jaechul Han
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Abstract
Embodiment relates to film for bonding, and a light-transmitting laminate including the same and the like, a film for bonding comprising an embossed surface, wherein the embossed surface has an A2/A1 value of 1 or less are disclosed. A film for bonding have improved in deairing stability during formation of a light transmitting laminate, an edge sealing characteristic, and the like by controlling characteristics of a embossed surface.
Claims13
A film for bonding comprising:
- an embossed surface,
- wherein the embossed surface has an A2/A1 value of 1 or less,
- wherein the film comprises a thickness increasing area,
- wherein the thickness increasing area has both ends which are one end and the other end
- wherein a thickness of the one end is different from a thickness of the other end,
- wherein a wedge angle (θ) is calculated by below Equation 1, and
- wherein the wedge angle of the thickness increasing area is 0.01 to 0.04°;
- θ
- =
- arctan
-
- (
- Hb
- -
- Ha
- w
- )
- [
- Equation
-
-
- 1
- ]
- where, in Equation 1, Hb is a thickness of thicker one between the one end and the other end of the thickness increasing area, Ha is a thickness of thinner one between the one end and the other end of the thickness increasing area, and w is a width from the one end to the other end of the thickness increasing area.
21 more elements
A film for bonding comprising:
- an embossed surface having a regular pattern or an irregular pattern,
- wherein the embossed surface has a Mr1 value and a Mr2 value,
- wherein a rev_Mr2 value is a value of subtracting the Mr2 value from 100%, and
- wherein the embossed surface has a Mr1 value which is equal to or greater than the rev_Mr2 value.
1 more element
A film for bonding comprising:
- an embossed surface having a regular pattern or an irregular pattern,
- wherein the embossed surface has a DSvk value of 6 um or less which is calculated by below Equation 2, and
- which comprises a plasticizer of 24 to 40 wt % based on the whole weight of the film for bonding;
- DSvk=S*vk−Svk [Equation 2]
- wherein in the Equation 2,
- the Svk value is a value calculated by ISO_25178, and
- the S*vk value is a height value of a point where an areal material ratio is a Mr2 in an areal material ratio curve according to ISO_25178.
4 more elements
Dependencies are inferred from the claim text.